NASA image reveals hidden sunlight that may help solve solar mystery

As a new series of NASA observations show, there's a lot more to sunlight than meets the eye.

This hidden light could help solve a mystery related to our host star's incredibly hot outer atmosphere, the corona.The human eye is only capable of seeing a relatively narrow band of the electromagnetic spectrum, which constitutes a vast amount of different wavelengths, including visible light, radio waves, microwaves, and infrared light.is able to observe infrared light peering through massive cosmic dust clouds that we could not otherwise see through.

For the new image, the NuStar data is combined with observations of low-energy X-rays taken by Japan's Hinode spacecraft, as well as ultraviolet observations taken by NASA's Solar Dynamics Observatory .The blue spots are particularly important as they show the hottest areas of the Sun's surface. Scientists have long sought to solve the mystery of why the Sun's corona, or outer atmosphere, is so much hotter than its surface.

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